6-Bromo-2-iodo-3-methoxy-4-nitropyridine CAS 2140305-28-6
| CAS No. | 2140305-28-6 |
| Molecular Formula | C6H4BrIN2O3 |
| Molecular Weight | 358.92 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine/iodine substitution, an aromatic ring system, 6-Bromo-2-iodo-3-methoxy-4-nitropyridine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 358.92 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
6-Bromo-2-iodo-3-methoxy-4-nitropyridine (CAS 2140305-28-6), molecular formula C6H4BrIN2O3 and molecular weight 358.92 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C6H4BrIN2O3 |
| Molecular Weight | 358.92 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1997 |
| Halogen Content | Br/I-containing |
| Nitrogen Atoms | 2 |
Related Bromo Standards
- Methyl 3-bromo-5-fluoro-4-iodobenzoate (CAS 1160574-64-0)
- Methyl 2-bromo-5-fluoro-3-iodobenzoate (CAS 1499694-56-2)
- Methyl 5-bromo-4-fluoro-2-iodobenzoate (CAS 1509204-33-4)
- Methyl 5-bromo-2-fluoro-3-iodobenzoate (CAS 1510575-52-6)
- 2-Bromo-5-(difluoromethyl)-3-iodoisonicotinonitrile (CAS 1804660-17-0)
- 2-Bromo-6-(difluoromethyl)-5-iodonicotinonitrile (CAS 1805010-31-4)
- 6-Bromo-3-(difluoromethyl)-5-iodopicolinonitrile (CAS 1805163-83-0)
- 6-Bromo-5-(difluoromethyl)-4-iodopicolinonitrile (CAS 1805384-11-5)
Recommended Standards
- (T-4)-[N-[(Carboxy-κO)methyl]-N-methylglycinato(2-)-κN,κO](3-iodophenyl)boron (CAS 1287221-37-7)
- 2-(4-Iodophenyl)-6-methyl-1,3,6,2-dioxazaborocane-4,8-dione (CAS 1257649-56-1)
- 2-(3-Iodophenyl)-6-methyl-1,3,6,2-dioxazaborocane-4,8-dione (CAS 1257649-55-0)
- 4-{[(4-chlorophenyl)sulfanyl]methyl}-6-(methylsulfanyl)-2-phenylpyrimidine (CAS 303147-19-5)
- 3-Chloro-6-(3-fluorophenyl)-4-methylpyridazine (CAS 1354959-58-2)
- Fmoc-p-nitro-D-Phe-OH (CAS 177966-63-1)
- Ethyl-D-proline hydrochloride (CAS 1777812-89-1)
- 2-Amino-5-(difluoromethyl)-3-(trifluoromethyl)pyridin-4-ol (CAS 1805215-81-9)
- 1-Benzyl-3-hydroxypyridin-1-ium bromide (CAS 62214-78-2)
- N-(6-Chloro-4-formylpyridin-3-yl)pivalamide (CAS 93493-66-4)
- (S)-3-((2R,3R,4R,5S)-5-allyl-3-hydroxy-4-((phenylsulfonyl)methyl)tetrahydrofuran-2-yl)propane-1,2-diol (CAS 871348-10-6)
- 2,5-Diphenyl-1H-pyrrole-3-carbonitrile (CAS 67421-66-3)
- Butylphthalide Impurity 45 Potassium (CAS 685886-82-2)
- Neuropeptide K, porcine (CAS 106441-70-7)
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